Mrs. Trump later joined Prince Harry in the VIP box for the opening ceremonies Sunday.

The prince addressed the competitors in an arena full of spectators, saying, "I hope you are ready to see courage and determination that will inspire you to power through the challenges in your own life... You are Invictus. Let's get started."

Kensington Palace’s official Instagram account has posted images of the prince meeting with athletes and watching from the crowd.

Harry’s girlfriend, actress Meghan Markle, was spotted at the games next to her friend Markus Anderson, who introduced the couple. Royal protocol dictates that they cannot sit together unless they are engaged or married. Every so often the prince was seen glancing over in Markle's direction.